NTDB now FREE!

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NTDB now FREE!

by matt wilkie :: Rate this Message:

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Hello Folks,  Good news!

"Important Notice -- Take note that the NTDB, CanImage and CanMatrix products will now be available at no cost only at the GeoGratis website." http://www.cits.rncan.gc.ca/cit/servlet/CIT/site_id=01&page_id=1-004.html

Note that the free CanMatrix available on the same server is only the half-resolution version (160dpi). The 300dpi is still for sale only and restricted distribution. A tip though, if you want the 300dpi buy it from  http://www.softmaptech.com/ for a fraction of the cost from NRCAN (with collars clipped to boot). Rumour has it that in a year or two the restrictions will be lifted here too.

If you already know what you're looking for, skip the 20-clicks interface at http://www.geogratis.ca/geogratis/en/index.html and dive straight into ftp://ftp2.cits.rncan.gc.ca/pub/geogratis/bndt/

A command like this will grab all of the 250k 105 series in one go:
[windows, with cygwin tools in path; double up % to put in a batch file]

   wget --continue --recursive --level 2 ftp://ftp2.cits.rncan.gc.ca/pub/geogratis/bndt/250k_shp_en/105/*

Then unpack:

   cd ftp2.cits.rncan.gc.ca\pub\geogratis\bndt\250k_shp_en\105\
   for /r %f in (*.zip) do unzip -d . %f

and mush together with OGR goodness (orders of magnitude faster than ArcGIS FeatureClassToXXX):

   mkdir merged
   for %f in (*wetland*.shp) do (
      ( if not exist merged\wetlands.shp ogr2ogr -f "esri shapefile" merged\wetlands.shp %f ) else (
      ogr2ogr -f "esri shapefile" -update -append merged\wetlands.shp %f )
   )  


Enjoy!

-matt
LightInTheBox - Buy quality products at wholesale price!